FOR HIGH-PRECISION SURVEYING & MAPPINGUNMANNED AERIAL SYSTEMS

SURVEY-GRADE IMAGERYWe capture high resolution aerial photos that are digitally stitched together to create one large, up-to-date aerial image of a project’s location. Engineers and land planners rely on this deliverable to inform crucial design decisions.

UNPARALLELED SAFETYFor sites with hazards or limited access, our unmanned aerial systems reduce exposure to potential safety issues. From forest fires to floods, we can fly any terrain.

EXPERIENCED TEAMAs early adopters of UAV technology, our team is made up of some of the most experienced remote pilots and surveyors in our region. When you hire us, you’re in good hands.

MORE DATA. MORE POSSIBILITIES. LESS TIME IN THE FIELD.

HOW WE USED LiDAR TO MAP THIS 8-MILE CORRIDOR One two-man crew. Three working days. Eight miles of corridor. By combining the latest in UAV imagery and LiDAR technology, we collected enough data throughout this corridor to build an up-to-date orthomosaic and a point cloud of more than 150 million pieces of data. The five classifications of data points were 1) ground; 2) vegetation; 3) poles, lines, and signs; 4) buildings; and 5) remaining. Using this data, we created a Digital Elevation Model (DEM) from the bare earth ground extraction that would allow generation of a full set of 1’ and 5’ contours. Surface check shots revealed mean accuracies of +/- 0.13’. We met our client’s needs and surpassed their expectations.

EFFICIENCY AT A HIGHER LEVELOur certified remote pilots and licensed surveyors meet our clients’ turnaround and accuracy demands by deploying the latest in unmanned aerial systems technology. We efficiently create contour maps, surface models, point cloud data, geo-referenced ortho imagery, topographic feature extraction, and survey-grade deliverables.

9,000 ACRE CORRIDOR 52 MILES LONG

HOUSTON, TEXAS

TURNAROUND: 45 DAYS

Crafton Tull was contracted to survey and plan for a proposed pipeline near Houston, Texas. In addition to surveying topography, our team mapped permanent structures, environmental issues, roads, fences, power lines, and other pipelines. Our team used a fixed-wing UAV to meet project timeline and accuracy goals. Executing a project of this scale, in addition to the fast turnaround, required detailed planning and a sophisticated deployment plan. Crafton Tull was able to meet the expected accuracy requirements by using GCPs and independent check shots collected by our field survey crews.

750 ACRESNORMAN, OKLAHOMA

TURNAROUND: 1 WEEK

The Crafton Tull team utilized UAV technology to survey 700 acres in Norman, Oklahoma. The completed topographic survey consisted of one foot interval contours. Our team worked within strict access restrictions, challenging weather, and VLOS/Part 107 Rules to successfully complete the project.

8 MILE CORRIDOR 500 FEET WIDE

SAVANNAH, TENNESSEE

TURNAROUND: 3 DAYS

Crafton Tull was hired by an engineering firm that needed to perform quantity verifications from existing to finish grades. Our team overcame unique challenges caused by high elevation change throughout the eight-mile corridor. We used UAV technology to collect survey data that allowed for surface modeling to meet the client's needs.